Yes thanks redesign, i get that but what i am trying to do is have the thing "off" by default so i have to turn it on to show throughout the timeline. It just gets confusing having to add several objects to keep turning them off at the relevant points?

Yes there is especially if you have some interactivity and if you have elements that need to interact in some ways because transparent does not mean it is not there. If you have any need for the user to interact with what they see on the screen, they cannot because though transparent the image is still there and blocks what is behind. Hope this makes sense.

Added to the fact, is there someway to alter the size of a graphic withoutit effecting the entire timeline? so i might want a thumbnail size version of a graphic for one frame but for another i might want to expand the size, can this be done?